使用Play Framework的JSON库自定义JodaTime序列化程序? [英] Custom JodaTime serializer using Play Framework's JSON library?

问题描述

如何为JSON实现自定义的JodaTime的DateTime序列化器/反序列化器?我倾向于使用Play Framework的JSON库(2.1.1).有一个默认的DateTime序列化程序，但它使用dt.getMillis而不是.toString，它将返回一个符合ISO的字符串.

How do I implement a custom JodaTime's DateTime serializer/deserializer for JSON? I'm inclined to use the Play Framework's JSON library (2.1.1). There is a default DateTime serializer, but it uses dt.getMillis instead of .toString which would return an ISO compliant String.

案例类的读写Reads [T]和Writes [T]似乎很简单，但是我不知道如何为DateTime做同样的事情.

Writing Reads[T] amd Writes[T] for case classes seems fairly straightforward, but I can't figure out how to do the same for DateTime.

推荐答案

我使用Play 2.3.7并在伴随对象中定义具有字符串模式的隐式读/写:

I use Play 2.3.7 and define in companion object implicit reads/writes with string pattern:

case class User(username:String, birthday:org.joda.time.DateTime)

object User {
  implicit val yourJodaDateReads = Reads.jodaDateReads("yyyy-MM-dd'T'HH:mm:ss'Z'")
  implicit val yourJodaDateWrites = Writes.jodaDateWrites("yyyy-MM-dd'T'HH:mm:ss'Z'")
  implicit val userFormat = Json.format[User]
}

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